Which type of propagation is used to transmit | vedclass

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(D) Radio waves can be transmitted from one place to another using different modes of propagation depending on their frequency range.$1$. Ground wave

Vedclass · Accepted Answer

All of the above

Vedclass · Answer

(D) Radio waves can be transmitted from one place to another using different modes of propagation depending on their frequency range.$1$. Ground wave propagation is used for low-frequency signals (up to $2 	ext{ MHz}$).$2$. Sky wave propagation is used for medium and high-frequency signals (between $3 	ext{ MHz}$ and $30 	ext{ MHz}$) by reflecting them off the ionosphere.$3$. Space wave propagation is used for very high-frequency $(VHF)$ and ultra-high-frequency $(UHF)$ signals (above $30 	ext{ MHz}$) using line-of-sight communication.Since all three methods are used for radio wave transmission, the correct answer is $D$.

Which type of propagation is used to transmit radio waves from one place to another?

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